Cap or cover for jars, bottles, glasses, or the like.



- R. 30mm.v CAP-OR COVEMFOR JARS, BOTTLES, GLASSE S, OR THE LIKE.

APPLICATION B-ILED MAR. H. I916. ,229,341

Patented June 12 1917.

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Specification of Letters Patent. Patented June 12, iili ii'l'o Application filed March 11, 1916. Serial No. 83,447.

, To all whom it may concern:

Be it known that 1, ROBERT SORGAN, a cit- York city, county and State of New York, have invented certain new anduseful Improvements in Caps or Covers for J are, Bot- I tles, Glasses, or the like, of which the following is a specification. j

The present invention relatesto improve-' ments in caps or covers for jars, bottles, glasses or the like. With the type of caps heretofore m use, a special form of upper edge was required on the receptacle to co- 'operate'with the cap in holding the same thereon, and special apparatus was required for binding the cap on the receptacle, or else the cap was pressed on the plain upper edge of a receptacle, and would depend upon wax or other such preparation for maintaining the same closed, and great difficulty was experienced in removing the same. Also widely different changes in temperature would tend to cause these caps to become unduly loose or tight, thereby endangering the removed when desired without danger of preservation of the contents in one case, and

other. It is an object of the presentiinvention therefore to provide an improved cap' which will have an elasticallyexpansible rim portion which may be placed upon the plain edge ofthe glass, merely by downward pressure thereon, and will form a very tight and secure closure which will in no way be affected by weather conditions, because'of the property of the rim to expand and con-' tract slightly. A further object is to provide means whereby the cap may be readily breaking the receptacle, and without requiring a great amount of physical exertion.

With these and other objects in view my invention is shown in the accompanying drawings, and will be hereinafter more fully described with reference thereto and finally pointed out in the claims.

In the accompanying drawings:

Figure 1 is a perspective view of my-improved cap. Figs. 2 and 3 are enlarged fragmentary views of the exterior and interior respectively of the rim portions thereof.

Fig. i is a top view of the cap.

Fig. 5 is a bottom view. Fig. 6 shows the same in'position on a. glass.

Fig. 'Zis a similar View with parts bro-ken" away showing the cap ready for removal. izen of the United States, resident of New on glass, after placing thereon, and ready for removal and Fig.10 is a diagrammatic view showing 9 the action which takes place when the cap is placed on the receptacle. 4 a

imilar reference characters indicate corresponding parts throughout the several figures of the drawings Referring to the accompanying drawings,

and more particularly to Figs. 1 to 3 thereof, my improved cap comprises an upper or body portion 10 having an annular depending rim portion 11, the top being slightly wider than. the rim as at 10. An

annular groove or recessed portion 12 is provided in the upper portion '10 annularly spaced from the rim 11 the material'being stamped or forced downwardly from the said upper portionto conform substantially to the upper. edge of the receptacle to be capped,"and forming on the under side of the cap an annular ridge which forces the rubber ring J3 into conformity with theupper edge of the receptacle, as hereinafter" more fully pointed out.

The rim l1 of'the capis provided inter- 'mediate the upper portion 10 of the cap and the lower edge with a plurality of indentations 14, slightly spaced apart, and

extending inwardly from the outersurface, thereby forming a plurality of projections 15 spaced on the interior of the rim. The

projections 15 is slightly within the outer surface of the receptacle to be capped, and

Y contour ,of the indentation 14 is'tapering outwardly and downwardly toward the lower edge. The contacting surface of the the lower edge of therim is slightly without the said outer surface of the receptacle,

1 so that the same may be readily set thereon without pressure. The rim is rendered slightly elastic by the indentations therein.

'The lower. edge of the rim is formed with a curled head 17 which forms a strengthem ing or stiffening portion to the At one point in the rim there is provided a cutout portion '18 preferably triangular in a shape, the'horizontal portion thereof being adjacent the stiffening edge 17 which is of sufficient strength to hold the rim in its proper shape.

In Figs. 8 9 and 10 I have ShOWIlilIl detail the manner in which the cap is applied to the receptacle, and in Fig. 10 I have 'shown diagrammatically the action which takes place. I

, Referring to these figures, the cap is first loosely placed upon the glass, so that'the projections 15 rest onthe upper edge of the same. These projections it will be clearly seen extend slightly within the outer surface of the receptacle. Downward pres sure is then applied to the cap preferably by a machine for this purpose and by reason 'of the elasticity -of the indented por-' tion of' the rim the projections are forced over thetop tight surface contact therewith. It is preferable that the capping machine be such that it will extract air from the receptacle during the capping operation. By means of-the gradual forcing out ofthe rim, as

. shown clearly in F 10 the resiliency of the cap is maintained. During this forcing out of the rim, the top of the cap is forced inwardly, this action reducing the vacuum space within the receptacle and also aiding in the locking of the cap on the receptacle, By reason of the spaces between the projections there is no air compression within the receptacle until the rubber ring comes into. contact with the rim of the re- 3 ceptacle, and at this point practically all of the air is exhausted. At the same time the rubber ring 13 will be made to conform to any slight irregularities in'the upper edge thereof, such as may be caused by chippingor in the manufacture by reason of the pressure exerted by the annular recessed portion 12, and the secure mannerin which the cap is held to the receptacle, so

that an absolutely air tight closure is made. When it is desired to remove the cap, the

' 1 portion of the stiifening edge 17 at the triangular out out portions 18 is'snapped or broken by any suitable instrument, and the rim by means of its elasticity,and the stiifness of the edge 17, is sprung outwardly as clearly shown'in Figs. 7 and 10, and the cap-may be readily-lifted from the'receptacle. r Ihave illustrated preferred and satisfactory forms-of my invention, but it is ob- "v i'ous that, -changes may be made therein within the spirit and scope thereof, as defined in the appended claims. I- claim 1. The combination with a receptacle of a closure therefor, comprislng a top, a downwardly'depending unbroken rim portion, having a plurality of inwardly extending closely adjacent projections, having a slight elasticity, the annular inner pre-attachment diameter of which is less than the outer diameter. of the rim of the receptacle, and the interior contacting surface of the rim of the" receptacle and form a I strengthening portion of the "a "i ii zs e ceptacle, the inner diameter. of said, proj ections in said extended positionbeing sub- I adapted to: be slightly expanded wr guie re-. I

stantially equal to the outer diameter of the l rim of said receptacle, said closure being retained thereon in saidexpanded and tensioned position by frictionally binding contact with said rim of the receptacle.

2. The combination with a receptacle of a closure therefor, comprising a top,adoWn wardly depending unbroken rim portion,

having a plurality of inwardly-extending I closely adjacent projections, having a slight elasticity, the annular innerpreattachment diameter of which is less than the outer diameter of "the rim of the receptacle, and the'lower edge of said rim portion being turned upon itself to form a strengthening and stiffening portion, the interior contact ing surfaceof the rim adapted to be slightly expanded over the receptacle and be retained thereon in said expanded position by frictional contact with said rim of the recep tacle. I

3. The combination with a receptacle of a closure therefor, comprising a top, a downwardly depending unbrokenrim portion provided with a plurality of indentations, slightly "spaced apart forming projections on the interior of the said rim, the innerpreattachment diameter 'of which is less. than the outer diameter of the rim of the receptacle, the sa d plurality of projections rendering the rim slightly elastic, the interior contacting surface of the rim adapted to be slightly expanded over the receptacle, the in- V ner diameter of said projections in said extended pos tion being substantially equal to the outer diameter of the'rim of said receptacle, said closure being retained thereon in said expanded and tensi'oned position by of the receptacle.

L. An improved receptacle cl0sure,1comprising a top, a downwardly depending unticity, the lower edge of the said rim'portion being turned upon itself to form a strengthening and stiffening portion, the saidv rim-being provided at one part with a cut outportion disposed adjacent the said strengthening rim portion, the interior contacting surface of the rim adapted to be slightly expanded over the receptacle to be capped, the closure adapted to be removed vfrictionally binding contact with said rim broken rim portion, having a slight elasprojections being inclined inwardly and upwardly, and being of a pre-attachment di said receptacle to be retained thereon in said i a closure member, comprising a top having expanded position-by frictional contact with said rim of the receptacle.

6. The combination with a receptacle of an annular recess therein, slightly within the inner diameter of the rim of said recep tacle, a downwardly, depending rim portion having a plurality of inwardly extending closelyadjacent projections, having a slight elasticity, the annular inner pie-attachment diameter of which is less than the outer diameter of the rim of the receptacle, a

yielding closure ringdispos'ed between the upper edge of said receptacle and said closure, and extending beneath said recessed portion of the top of said closure, the interior contacting surface-of the rim of said closure adapted to be slightly expanded over the receptacle, and to be retained thereon in said expanded position by frictional contact with said rim of the receptacle, said yielding closure ring adapted to bc -.slightly.

forced within said receptacle ,by said recessed portion on the top of saidclosure to form an air tight closure therewith. J

In testimony that I claim the foregoing as my lnvention, I have signed my name in presence of two subscribing witnesses.

ROBERT SORGAN. Witnesses: D

F. Hose, JOHN SCHWARZ. 

